Pentastick is based on an idea by David Pitcher, posted at the Twisty Puzzles Forum, and enhanced by Eitan Cher, Anthony Villaveiran and Carl Hoff. Conventional twisty puzzles have all turning axes going through a single origin. Not for this puzzle, which has two origins. Each half of the puzzle alone plays like a simplified version of the Pentagonal Prism. However, as the two halves exchange pieces, the puzzle as a whole is much harder.